Sony SLV-D300P (serv.man3) Service Manual ▷ View online
7-13
No focus incoming
FE
in SIC1-8
is within specified range?
(FE Waveform)
SIC3-10, 11 output
are normal?
Check open state from
SIC3 to pick-up.
Check RIC1 and A, B, C, D input.
Check SIC3.
Yes
Yes
No
No
A
(DVD Section)
No pick-up home positing
SIC1-26
(SLD)
output is normal?
(1.7V ~ 1.8V)
Check the Sled Motor and connection
Check SIC1
Yes
No
SLED+, SLED-
SIC3-32, 33 output are
normal?
Check SIC3
Yes
No
(SLD Waveform)
(DVD Section)
7-14
NO DVD LD ON
RIC1-22 is 5V?
Current exceeds 0.1A?
LD out pick-up replace.
Open check in related circuit.
Check RIC1
Yes
Yes
Yes
No
No
Divide RQ2 emitter terminal
voltage and 5V real voltage
difference into 10ohm.
(DVD Section)
No Search Operation
MIRR
, SIC1-37
output is normal?
Actual velocity occurs
at SIC1-152 terminal?
Actual velocity occurs
at SIC3-32, 33 terminal?
Check RIC1 peripheral circuit.
RFAGCO, RIC1-73
output level is normal?
Check SIC1 peripheral circuit.
Check SIC3 peripheral circuit.
No
No
No
No
Yes
occurs in search range?
Focus On?
Yes
Yes
Yes
A
See "Fine Seek Check"
No
Yes
Check pick-up.
No
(MIRR Waveform)
(DVD Section)
7-15
FINE SEEK Check
FINE SEEK MIRR
signal (RIC1-67) is missing?
TZCO signal
(SIC1-159) is occurs?
Track incomming is
delayed?
TE is within
2V and 3V?
Pick-up transfer smooth.
Check RIC1 Peripheral curcuit.
Check SIC1 Peripheral curcuit.
Time out due to many jump counts.
Check SIC1 peripheral circuit.
SIC1-14
(TRD)
output is normal?
SIC3-30, 29
(T+, T-)
terminal outputs are
normal?
Check CN1 and pick-up.
Check MECHA.
Check RIC1-36 terminal.
Check SIC3 peripheral circuit.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
(TRD Waveform)
(DVD Section)
Abnormal rotation of
disc motor
Input of
RF EQO
signal is normal?
(SIC1-152)
SPD
output is normal?
(SIC1-28)
After resoldering SIC1.
SIC3-7
(FG)
output
is normal?
SIC3-44 signal
MON is "H" ?
Check or replace disc motor.
Check SIC1.
Check SIC3 soldering and power.
Check path to RIC1 and SIC1.
RIC1-71 output
is normal?
Check RIC1 peripheral
circuit and A, B, C, D.
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
(FG Waveform)
(SPD Waveform)
(RF EQO Waveform)
(DVD Section)
7-16
No Tray open/close
ZIC1-24, 25 is
Open ; "L" ?
Close ; "H" ?
Check SIC3-34, 35
output at
OPEN
/CLOSE
Check signal line state from
SIC3-34, 35 to tray motor.
Check ZIC1 perpheral circuit.
Check SIC3 perpheral circuit
and CN3 connector.
Yes
Yes
No
No
(OPEN Waveform)
(DVD Section)
CD/VCD/DVD L/R output error
(Mixed Audio output)
Normal
DATA 0
is
input in AIC2-2?
CHECK
AIC2-7, 8pin output is
normal?
Check PCB peripheral
Pattern shot.
Check ZIC1-184 output.
Check ZIC1-179
(CD/VCD ; 16.9344MHz,
DVD ; 18.432MHz)
Yes
Yes
No
No
AIC5-1, 7 output
is normal?
Check AIC4 peripheral circuit.
Yes
No
Base terminal level
of AQ3, AQ6
are "L"?
Check VCR-MICOM mute
Yes
No
(DATA 0 Waveform)
(Vout Waveform)
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